I have just finished the fourth rebuild of my originally owned '85 Shelby Charger and have some concerns on the oiling and related valve train noise.
The bottom end is an '89 Common Block 2.2 TII w/forged Venola's The top end is my original 287 bathtub head (non-OSJ), caps (w/"oil squirters"), the '89 Roller Cam, lifters and followers. Also late model seal plug. History of Symptoms: First 250 miles (10-20 miles at a time) I ran Castrol 5w/30 (temp, oil pressure fine all the way). While I of course stayed out of the boost you could tell it was not right. Encountered Turbo bearing & turbine oil seal failure at around 300 miles. Rebuilt the turbo (did not appear oil related). Changed oil, again going with the 5w/30, ran it 250 more miles boost was stronger than ever (no I did not even try to get in it yet). Decided all was going pretty good so I changed the oil again (same 5w/30) and went for a little longer drive about 100 miles strait up. All was fine until the lifter noise began. I killed it, let it cool and restarted it an all was fine again. After about 15-20 minutes of driving the noise returns. It begins soft then gets louder. I am shutting it down before it gets to point of being real obvious. It is almost as if one or possibly two of the lifters are collapsing. I removed the valve cover, built a shield to try and keep oil from going everywhere and cranked it. Just inside of the #5 Cap (normally covered by the valve cover there is a pretty good stream of oil shooting strait up (about a foot). It seems like the oil is coming from the squirter area and then shooting strait up as opposed to towards the cam (possibly starting toward the cam then hitting the lip of the cam and turning upward) All of the other squirters are spraying away and the oil pressure (using the dash gauge is fine). Also all of the lifters are hard as rocks and show no signs of breaking down. Although, I have not found any formal way of testing and you really cannot remove them at full temp. The Bearing Journal OD on the roller camshaft is 1.3761 which is identical to that of the slider cam. So my question is the stream on #5 normal? If not what are the possible reasons. Going through all of my vintage stuff I can only detect a slight lip or bevel on pre-plug type seals vs. plug versions. Your help is greatly appreciated. Mike [EMAIL PROTECTED] -----------------------REMOVE-FOOTER-WHEN-REPLYING---------------------------- Questions? Visit http://www.sdml.org/ To be removed, visit http://www.sdml.org/pages/leave.html
